Zinopin [Discontinued] by Vascular Health

NatMed Pro Brand Evidence-based Rating (NMBER)

Ingredients hide details

Each capsule contains: Ginger root standardized extract 150 mg • French Maritime Pine bark extract standardized 100 mg.

Brand name products often contain multiple ingredients. To read detailed information about each ingredient, click on the link for the individual ingredient shown above.

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This product has been discontinued by the manufacturer.

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Effectiveness view details

Below is general information about the effectiveness of the known ingredients contained in the product Zinopin. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

GINGER

POSSIBLY EFFECTIVE

Dysmenorrhea. In people with dysmenorrhea, taking oral ginger seems to reduce pain. Clinical research shows that ginger might be comparable to ibuprofen or mefenamic acid. In addition, taking ginger seems to be beneficial when used as an adjunct to mefenamic acid 250 mg twice daily. Details: Clinical research in individuals at least 15 years of age shows that ginger can reduce pain from dysmenorrhea. Clinical studies show that taking ginger powder 500-2000 mg daily usually for the first 3-4 days of a menstrual cycle modestly decreases pain severity by an average of 2.3-2.7 points on a 10-point scale when compared to control groups (89889,89899,91139,91892,96255,106077). However, a meta-analysis of clinical research shows that taking ginger does not reduce pain duration when compared with placebo (106077). Clinical research also shows that ginger might be as effective as some anti-inflammatory agents. Taking a specific ginger extract (Zintoma, Goldaru) 250 mg four times daily for 3 days at the beginning of the menstrual period or until pain relief improves symptoms similarly to ibuprofen or mefenamic acid (17931,96259,106077). Also, taking a ginger extract 200 mg four times daily for 3-4 days at the beginning of pain is equally effective to taking Novafen, a combination of acetaminophen, caffeine, and ibuprofen (99444). Ginger also seems to improve pain when given as an adjunct to anti-inflammatory agents. A small clinical study in young females with dysmenorrhea shows that adding ginger (Vomigone, Dineh Co.) 500 mg daily to mefenamic acid 250 mg twice daily for 5 days further reduces pain when compared with taking mefenamic acid alone (102464).
Osteoarthritis. Most clinical research shows that taking ginger extract by mouth improves pain in some patients with osteoarthritis. Topical ginger, on the other hand, has not shown benefit for knee osteoarthritis in low quality research. Details: Meta-analyses of clinical research show that taking ginger extract 500-1000 mg daily for 3-12 weeks can modestly improve pain when compared with placebo in some patients with osteoarthritis of the knee or hip (96253,103357). However, a meta-analysis of two clinical studies shows that taking ginger extract about 500 mg daily for 6 weeks does not have an effect on function (103357). Some clinical research has also compared ginger to conventional drug treatment. In one clinical trial, there was no significant difference between ginger extract 30 mg daily and ibuprofen 400 mg three times daily for one month in patients with osteoarthritis of the hip or knee (17930). However, taking a specific ginger extract (Eurovita Extract 33; EV ext-33) orally 170 mg three times daily for 3 weeks was significantly less effective than ibuprofen 400 mg three times daily for reducing pain (7048). Since ginger is thought to take several weeks for significant benefit, this trial might not have lasted long enough. Ginger has also been compared with diclofenac. When used orally as 1500 mg daily in two divided doses, ginger is less effective than oral diclofenac 100 mg daily in two divided doses, or the combination of ginger and diclofenac, for 12 weeks (89898). Various studies have evaluated formulations containing ginger with other ingredients. These combinations have all been shown to improve osteoarthritis pain, and in some cases, functionality. Studied formulations include ginger (Eurovita Extract 35; EV ext-35) 340 mg with glucosamine (Zinaxin glucosamine, Ferrosan AS) 1000 mg daily for 4 weeks, a ginger extract with an alpinia (Alpinia galanga) extract (Eurovita Extract 77; EV ext-77) 255 mg twice daily for 6 weeks, a ginger extract with curcuminoids, and extracts of devil's claw, Boswellia serrata, and celery (Tregocel) for 36 weeks, or Ayurvedic shunthi-guduchi formulations containing ginger, Indian gooseberry, and Tinospora cordifolia, either with or without Boswellia serrata (7084,18210,89557,106078). However, it's too early to know if the effects of these combination agents are associated with ginger or other ingredients in the formulations. Topical ginger, alone or in combination with other ingredients, has also been studied for knee osteoarthritis. Although a meta-analysis of two randomized clinical trials shows no evidence of benefit of topical ginger for pain and disability when compared with placebo or standard therapy (103357), some benefits have been shown in individual preliminary studies (20340,20341,89897,96668,97537,97542). These trials have used a specific gel containing ginger and plai 4% by weight (Plygersic gel, Thailand Institute of Scientific and Technological Research) 4 grams/day in four divided doses for 6 weeks (89897), an ointment composed of ginger, cinnamon, mastic (Saghez), and sesame oil twice daily for 6 weeks (20340), or one gram of ginger extract 5% (standardized to 11.18% of 6-gingerol) in a nanostructure lipid carrier three times daily for up to 12 weeks to the affected knee (96668,97537). Some studies have used ginger essential oil in a massage oil, alone or with sweet orange essential oil or standard therapy, twice weekly for 3 or 6 weeks (20341,97542).
Pregnancy-induced nausea and vomiting. Oral ginger seems to reduce the severity of nausea and vomiting in some people during pregnancy. Ginger seems to be more effective than placebo, comparable to vitamin B6 or dimenhydrinate, and less effective than metoclopramide. Details: Although most clinical studies are small and have methodological limitations, the available research shows that ginger is more effective than placebo, and comparable to vitamin B6 or dimenhydrinate (721,1922,5343,11346,13071,16306,20312,20315,90103,91201,102462). Although ginger is comparable to dimenhydrinate for reducing symptoms of morning sickness, it seems to take about 3 days to reduce vomiting episodes compared to 1 day with dimenhydrinate (16305). In addition, clinical research shows that ginger is less effective than metoclopramide at relieving nausea and vomiting associated with pregnancy (20315). Ginger doses of 500 to 2500 mg daily, divided into two to four daily doses for 3 days to 3 weeks, have been used in clinical research (721,5343,16305,16306,20312,20315,90103,91201).

POSSIBLY INEFFECTIVE

Exercise-induced muscle soreness. Most research shows that oral ginger in single or multiple doses does not prevent or treat exercise-induced muscle soreness. Details: Two small studies in healthy adults show that single doses of ginger supplements do not seem to reduce muscle soreness from exercise. Taking capsules of ground ginger 2 grams, 30 minutes before a 30-minute cycling bout, or 24-48 hours after eccentric exercise, does not reduce muscle pain during exercise or within one hour of ingestion when compared with placebo (17932,17934). Taking multiple doses also does not seem to help. One small study in healthy adults shows that taking capsules with ginger powder 4 grams daily for 5 days before high-intensity eccentric exercise does not reduce muscle soreness over 4 days when compared with placebo (96258). Another small study in healthy adults shows that taking capsules of heated or raw ground ginger 2 grams daily for 8 days prior to eccentric exercise, and continuing supplementation for 3 more days, might modestly reduce muscle soreness 24 hours post-exercise, but not at later time points, when compared with placebo (17933,96258). Ginger has also been tested in combination with other ingredients. One small study in healthy adults shows that taking a specific combination product (ReWin(d), Natural Origins) containing a 4:3 ratio of ginger and annatto powder, 2 grams in divided doses daily for 4 weeks before eccentric exercise and continuing for 3 days after exercise, may modestly reduce muscle pain 48 hours after exercise but not at other time points (105057). This study was funded by the supplement manufacturer.
Motion sickness. Most research shows that oral ginger does not prevent or treat motion sickness. Details: Most clinical research shows that taking ginger 500-1000 mg up to 4 hours prior to travel does not prevent motion sickness (7624,7625,20330,20331). Some patients report subjective feelings of improvement, but in many studies objective measures did not significantly improve (7400). However, one clinical trial suggests that ginger is more effective than dimenhydrinate at reducing gastrointestinal distress associated with motion sickness (20332). Another clinical study seems to show that taking ginger 1-2 grams as a single dose reduces nausea severity and increases the latency before the onset of nausea caused by simulated motion sickness when compared to baseline (20333). The validity of this finding is limited by the lack of a comparator group.

INSUFFICIENT RELIABLE EVIDENCE to RATE

Acute respiratory distress syndrome (ARDS). Some small clinical studies show that giving ginger with tube feeds to hospitalized patients might reduce the duration of serious sequelae from ARDS. Details: A small clinical trial in adults with ARDS shows that administering ginger extract 120 mg in three divided doses daily via nasogastric tubing for 21 days increases the number of ventilator-free days and the amount of feeding tolerated and decreases the number of intensive care unit (ICU) days when compared with placebo. However, it does not seem to improve overall mortality (20343). Also, another small clinical study shows that adding ginger extract 120 mg to tube feeds in three divided doses daily for 8-21 days improves blood oxygen levels by 13% to 20%, as well as the ability of the lungs to expand by 17%, when compared with a coconut oil placebo. The duration of mechanical ventilation and stay in the ICU also improved. However, ginger does not affect other measurements of lung function or physical organ damage in these patients (89886).
Allergic rhinitis (hay fever). It is unclear if oral ginger is beneficial in allergic rhinitis. Details: A small clinical trial shows that taking ginger extract 500 mg daily for 6 weeks is as effective as loratadine 10 mg daily for reducing nasal symptoms of allergic rhinitis (103359).
Antiretroviral-induced nausea and vomiting. Oral ginger seems to improve nausea and vomiting in patients using antiretroviral agents. Details: A small clinical study in patients with HIV shows that taking ginger 0.5 grams twice daily, 30 minutes prior to each dose of antiretroviral for 14 days, reduces the relative likelihood of nausea and vomiting by about 63% and 79%, respectively, when compared with placebo (89887).
Asthma. Although there has been interest in using oral ginger for asthma, there is insufficient reliable information about the clinical effects of ginger for this condition.
Back pain. Although there has been interest in using oral ginger for back pain, there is insufficient reliable information about the clinical effects of ginger for this condition.
Burns. Although there has been interest in using topical ginger for burns, there is insufficient reliable information about the clinical effects of ginger for this condition.
Cancer-related anorexia. It is unclear if oral ginger improves appetite in people with cancer-related anorexia. Details: A small clinical study in patients with cancer-related anorexia and cachexia shows that taking a capsule containing ginger 1650 mg daily for 14 days improves nausea, appetite, reflux, dysmotility, and other gastrointestinal symptoms when compared to baseline (102460). The validity of these findings is limited by the lack of comparator group.
Chemotherapy-induced nausea and vomiting (CINV). Most clinical research shows that oral ginger does not reduce acute or delayed CINV. The effect of ginger might depend on the dose, the other antiemetics used, or the specific chemotherapy regimen. Details: Most clinical research shows that taking ginger as adjunct to adequate antiemetic therapy does not reduce DELAYED CINV when compared with antiemetic therapy alone (20316,96260,89891,96675,97538,97541,101760,102461). Clinical research from meta-analyses and most individual clinical studies also show that taking ginger 0.5-3.5 grams as an adjunct to standard antiemetic therapy does not reduce the incidence or severity of ACUTE CINV when compared with antiemetic therapy alone (89891,96675,101760,102461,102466). However, conflicting results exist from some individual clinical studies (20316,102466). These individual studies evaluated powdered ginger root or liquid extract of ginger root 0.5-2 grams taken in two to four divided doses daily, starting on either the day of or 3 days before chemotherapy and continuing for 3-5 days after chemotherapy initiation (20316,102466). Also, one small study shows that ginger in doses of 1 gram or less for more than 3 days reduces the likelihood of acute vomiting by 60% (101760). More research is needed to confirm the efficacy of this lower dose. Reasons for the conflicting results are unclear, but several theories have been postulated. One theory is that ginger might help reduce CINV associated with some, but not all, chemotherapy regimens. One preliminary clinical study shows that ginger 500 mg twice daily for 3 days reduces vomiting in patients receiving cyclophosphamide and doxorubicin, but not in patients also receiving 5-fluorouracil or docetaxel (96251). However, since there is limited evidence supporting this theory, additional research is needed to confirm. Another theory is that ginger helps when used with certain antiemetic drugs, but not others. For example, ginger seems to help in cases when optimal antiemetic therapy, such as 5-HT3 receptor antagonists, is not available. Small clinical studies show that ginger reduces the severity of acute nausea when compared with prochlorperazine or metoclopramide, both of which are suboptimal antiemetic therapy for CINV (89891). Another small study shows that ginger is comparable to metoclopramide for improving delayed chemotherapy-induced nausea (13244). On the other hand, several studies show that taking ginger 0.5-2 grams daily along with antiemetic therapy that includes aprepitant does NOT improve acute or delayed CINV (20318,89891,96251,96675). In fact, one study found an association between concomitant use of ginger 2 grams daily with aprepitant and worsened severity of delayed nausea. Ginger is hypothesized to decrease the absorption of aprepitant and reduce its effectiveness for delayed nausea (20318,96675). However, this effect has not been replicated, and aprepitant serum levels were not measured to confirm this hypothesis. Finally, many of the studies showing a benefit of ginger for CINV when used as an adjunct to standard antiemetic therapy are considered to be methodologically flawed (20317,96252,96677). For instance, one study using powdered ginger root 1-2 grams daily during the first three days of chemotherapy in children and adults (20317) has been criticized for inaccurately representing data (89891). Other studies of ginger 500 mg twice daily for up to 10 days used questionable methods to measure outcomes and usually did not differentiate between acute and delayed CINV (96252,96677). Ginger essential oil aromatherapy has also been evaluated. One small study shows that using two drops of ginger essential oil on an aromatherapy necklace for 2 minutes daily for 5 days, starting on the first day of chemotherapy, reduces acute nausea, but not vomiting or delayed nausea, when compared with placebo in females with breast cancer taking standard antiemetics including granisetron, dexamethasone, and metoclopramide (96256).
Chronic obstructive pulmonary disease (COPD). Oral ginger has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research shows that taking two capsules of a specific combination product (AKL1, AKL International Ltd.) containing ginkgo extract, ginger, and Picrorhiza kurroa twice daily for 8 weeks does not improve respiratory symptoms when compared with placebo in patients with COPD (89702). Another moderate-sized clinical study in adults with COPD shows that taking a combination product containing extracts of ginger, alpinia, cardamom, cinnamon, and saffron in honey 3 times daily for 8 weeks improves confidence in leaving home and the ratio of forced exploratory volume per second to forced vital capacity of the lungs (FEV1/FVC) when compared with placebo. However, the combination product does not improve most measures of respiratory function or symptoms such as cough, phlegm, chest tightness, dyspnea, reduced energy levels, sleeping disorders, or activity limitations when compared with placebo (111542). It is unclear if these effects are due to ginger, other ingredients, or the combination.
Colic. Although there has been interest in using oral ginger for colic, there is insufficient reliable information about the clinical effects of ginger for this condition.
Constipation. Although there has been interest in using oral ginger for constipation, there is insufficient reliable information about the clinical effects of ginger for this condition.
Coronavirus disease 2019 (COVID-19). It is unclear whether oral ginger is beneficial for patients with COVID-19. Details: Clinical research in adults hospitalized with asymptomatic COVID-19 infection shows that taking ginger 1.5 grams twice daily orally until hospital discharge reduces length of stay from around 8.5 days to 6 days, when compared with placebo. The strongest effect is seen in males over 60 years of age (110005). The relevance of these results is reduced by a lack of blinding, and the fact that the subjects were initially asymptomatic. The efficacy of ginger for treating COVID-19 has also been evaluated in combination with other ingredients. In adults with uncomplicated, moderate COVID-19, taking a combination of ginger, turmeric, ashwagandha, and boswellia (BV-4051, Artovid-20), 1776 mg twice daily orally for 14 days in addition to standard care and starting 48-96 hours after symptom onset, reduces the mean duration of symptoms from about 8 days to 7 days, when compared with placebo (109899). A small open-label study in adults with confirmed mild to moderate COVID-19 shows that taking ginger 1000 mg and ashwagandha 500 mg twice daily for 15 days, along with conventional therapy, leads to a 13.8-fold and 2.6-fold increase in the relative rate of clinical cure at 7 days and 15 days, respectively, when compared with conventional therapy alone. Taking this combination also appears to reduce time to recovery by around 6 days but does not improve the rate of negative COVID-19 tests, chest imaging findings, viral clearance, serum antibodies, or other measures of disease progression when compared with conventional therapy alone (112094). The validity of these findings is limited by a lack of blinding, and the study may have been inadequately powered to detect a difference between groups. Additionally, it is unclear if these effects are due to ginger, ashwagandha, or the combination.
Diabetes. Some preliminary clinical studies suggest that oral ginger might have a small beneficial effect on glycemic control in patients with type 2 diabetes or gestational diabetes. Details: Meta-analyses of several small clinical trials in adults with type 2 diabetes show that taking ginger 1200-3000 mg daily for 8-13 weeks reduces glycated hemoglobin (HbA1c) by around 0.6% to 1% and fasting blood glucose by 19-21 mg/dL when compared with placebo (96680,107898). Additionally, a small clinical study in adults with diabetes on hemodialysis for end stage renal disease shows that taking ginger powder 2000 mg daily for 8 weeks reduces fasting blood glucose and measures of insulin resistance, but not serum insulin levels, when compared with placebo (111543). In patients with gestational diabetes at weeks 24-28 of pregnancy, clinical research shows that taking ginger 1500 mg daily in three divided doses for 6 weeks reduces fasting blood glucose, insulin levels, and measures of insulin resistance by a small amount when compared with placebo, with no effect on postprandial glucose levels (103358).
Diarrhea. Although there has been interest in using oral ginger for various types of diarrhea, including cholera and acute bacterial dysentery, there is insufficient reliable information about the clinical effects of ginger for these conditions.
Dry mouth. It is unclear if rinsing the mouth with ginger extract is beneficial for dry mouth. Details: In patients with dry mouth related to type 2 diabetes, clinical research shows that use of a ginger extract 25% mouthwash 20 mL three times daily for 14 days modestly reduces symptoms of dry mouth when compared with rinsing with a saline control mouthwash (106068). Although this study was indicated as being triple-blind, it is unclear how the taste of ginger was masked.
Dyspepsia. It is unclear if oral ginger is beneficial for dyspepsia. Details: In patients with dyspepsia, a small clinical trial shows that a single dose of ginger root powder 1.2 grams, taken 1 hour prior to eating, does not reduce abdominal discomfort when compared with placebo. However, it increases the rate of gastric emptying (20325).
Erectile dysfunction (ED). It is unclear if oral ginger is beneficial for erectile dysfunction. Details: Preliminary clinical research in middle-aged males with ED shows that taking two capsules of a specific combination product (Revactin, MD Concepts LLC) containing ginger root 250 mg, muira puama 250 mg, guarana 250 mg, and L-citrulline 800 mg twice daily for 3 months improves scores related to erectile function and intercourse satisfaction, but does not improve sexual desire or orgasmic function scores, when compared to baseline (103224). This study is limited by the lack of a placebo control, the use of per-protocol analysis, and a high dropout rate. In fact, 44% of patients withdrew in order to resume use of phosphodiesterase type 5 (PDE5) inhibitors. Further, it is unclear if these effects are due to ginger, other ingredients, or the combination.
Gastroenteritis-associated nausea and vomiting. It is unclear if oral ginger is beneficial for children with gastroenteritis-associated vomiting. Details: In children aged 1-10 years with acute gastroenteritis-associated vomiting, clinical research shows that taking a single dose of ginger reduces the risk of vomiting at least once in the subsequent 8 hours by 20% when compared with placebo. The incidence of vomiting over the next 24 and 48 hours was also modestly reduced. The children were given 20 drops of ginger equivalent to 10 mg immediately, followed by every 8 hours until cessation of vomiting. All children were offered hypotonic oral rehydration solution (ORS) 30 minutes after the first dose (106076). The number of children accepting ORS, and the quantity of ORS consumed, was less in the group receiving placebo. It is unclear if this affected the outcomes of this study. Also, the incidence or severity of nausea was not investigated.
Hangover. It is unclear if oral ginger is beneficial for managing symptoms of hangover. Details: Preliminary clinical research shows that use of a decoction containing a combination of ginger 6 grams, pith of Citrus tangerine 3 grams, and brown sugar decreases symptoms of alcohol hangovers, including nausea, vomiting, and diarrhea, when compared with placebo. The decoction was taken once 5 hours prior to drinking alcohol or four times after drinking alcohol (20320).
Hyperlipidemia. Oral ginger may be modestly beneficial for some patients with hyperlipidemia. Details: A meta-analysis of preliminary clinical research in adults with and without hyperlipidemia shows that taking ginger 200-3000 mg orally daily for 2-24 weeks reduces triglyceride and low-density lipoprotein cholesterol levels by 12 mg/dL and 5 mg/dL, respectively, and increases high-density lipoprotein cholesterol levels by 1 mg/dL when compared with placebo (109521). However, the validity of this study is limited by high heterogeneity. A clinical study in adults with hyperlipidemia shows that taking ginger powder 1 gram three times daily for 45 days reduces triglyceride and cholesterol levels by an additional 36% and 90%, respectively, when compared with placebo (20327).
Hypertension. It is unclear if oral ginger is beneficial for lowering blood pressure. Details: A preliminary clinical study in patients with diabetes and elevated systolic blood pressure shows that drinking black tea containing ginger 3 grams three times daily for 8 weeks does not reduce blood pressure by a clinically significant amount when compared with plain black tea (96669).
Hypothyroidism. It is unclear if oral ginger is beneficial in patients with hypothyroidism. Details: A small clinical study in patients with primary hypothyroidism who are stabilized on thyroid hormone therapy shows that taking ginger powder 500 mg twice daily for 30 days improves symptoms associated with hypothyroidism, including cold intolerance, constipation, dizziness, dry skin, weight gain, and concentration and memory issues, when compared with placebo. However, ginger supplementation does not seem to improve hair loss, hearing, nail fragility, speech, or feelings of depression in these patients (107903).
Insect bite. It is unclear if topical ginger is beneficial for reducing the size of insect bites. Details: Preliminary clinical research shows that a topical application of Trikatu, which contains ginger, long pepper, and black pepper extracts with 0.074% piperine and 0.046% gingerol, does not reduce the papule size associated with mosquito bites when compared with a control compound containing the same base ingredients of camphor 2%, menthol 2%, and eucalyptus oil 4% (89893).
Intraoperative nausea and vomiting (IONV). It is unclear if oral ginger is beneficial for preventing IONV. Details: Clinical research in individuals undergoing elective C-section and receiving cimetidine and metoclopramide, shows that taking ginger 1 gram orally 30 minutes prior to anesthesia reduces the number of episodes of intraoperative nausea, but not vomiting, when compared with placebo (89890). In other clinical research in adults undergoing elective surgical procedures, adding ginger to a high calorie drink consumed pre-operatively reduces the incidence of nausea from 40% to 10%, and the incidence of vomiting from 25% to 10% when compared with the high calorie drink alone (110007). The validity of these results is unclear as only patients were blinded to the treatment group.
Irritable bowel syndrome (IBS). Oral ginger might reduce symptoms of IBS when used in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical trial shows that taking ginger 1-2 grams daily for 28 days does not improve symptoms or the number of responders when compared with placebo (90102). However, some research shows that ginger might be beneficial in some patients when used along with other herbal ingredients. Taking a capsule containing ginger, boswellia, and yarrow three times daily for 30 days reduces the frequency and severity of abdominal pain, as well as the severity of bloating, when compared with placebo in females, but not males, with mild to moderate IBS (96673). Another clinical study shows that taking an herbal mixture containing ginger, English horsemint, and purple nut sedge tuber three times daily for 8 weeks improves IBS symptoms including abdominal pain, stool frequency, stool consistency, incomplete evacuation, and urgency, when compared to baseline; these improvements are similar to those achieved by taking mebeverine 135 mg three times daily (89900). However, it is unclear if these effects are due to ginger, other ingredients, or the combination.
Joint pain. Oral ginger has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research shows that taking a specific combination product (Instaflex Joint Support, Direct Digital) containing glucosamine sulfate 1500 mg, methylsufonlylmethane 500 mg, white willow bark extract 250 mg, ginger root concentrate 50 mg, Boswellia extract 125 mg, turmeric root extract 50 mg, cayenne 40 m H.U. 50 mg, and hyaluronic acid 4 mg in three divided doses daily for 8 weeks reduces joint pain severity by 37% compared to only 16% with placebo. However, it does not improve joint stiffness or function when compared with placebo (89560). It is unclear if these effects are due to ginger, other ingredients, or the combination.
Menorrhagia. It is unclear if oral ginger is beneficial for menorrhagia. Details: Preliminary clinical research in healthy adults experiencing heavy menstrual bleeding shows that taking ginger 250 mg three times daily for 4 days, starting the day prior to menstruation, and repeating for three menstrual cycles, reduces the amount of menstrual bleeding when compared with placebo (96672).
Menopausal symptoms. Although there has been interest in using oral ginger for menopausal symptoms such as insomnia, there is insufficient reliable information about the clinical effects of ginger for this purpose.
Migraine headache. Small clinical studies suggest that oral ginger may modestly reduce migraine pain severity and duration. However, taking ginger doesn't seem to PREVENT migraines. Details: Ginger does not seem to be effective for the prevention of migraines. Clinical research in patients with episodic migraine shows that taking ginger extract 200 mg three times daily for 3 months does not reduce the number of migraine attacks, the use of analgesics, or the number of days with pain, any more than taking placebo (101761). However, ginger may be beneficial for the treatment of migraine. Clinical research shows that taking ginger extract 400 mg orally in the emergency room along with intravenous ketoprofen 100 mg reduces pain over the next 2 hours when compared with ketoprofen and placebo. This combination also resulted in an overall better response with a higher likelihood of having no or mild pain with treatment (101762). Taking ginger 250 mg at the onset of a common migraine headache seems to be as effective as taking sumatriptan 50 mg for reducing headache severity within two hours of treatment (89894). Furthermore, a combination of ginger and feverfew (GelStat Migraine, GelStat Corporation; LipiGesic M, PuraMed BioScience), administered sublingually at the onset of a migraine attack, decreases the duration and intensity of migraine pain when compared with placebo (19357,22602). It is unclear if these effects are due to ginger, feverfew, or the combination. Feverfew alone has demonstrated some benefit in treating migraines.
Multiple sclerosis (MS). It is unclear if oral ginger is beneficial for MS. Details: A small clinical study in adults with MS shows that taking ginger 500 mg three times daily for 12 weeks reduces disability scores and improves physical and psychological quality of life scores when compared with placebo (111541).
Nonalcoholic fatty liver disease (NAFLD). It is unclear if oral ginger is beneficial for NAFLD. Details: A small clinical study in patients with NAFLD shows that taking ginger root 1500 mg daily for 12 weeks reduces low-density lipoprotein (LDL) cholesterol and fasting blood glucose levels, but does not affect triglycerides, high-density lipoprotein (HDL) cholesterol, insulin resistance, blood pressure, or fatty liver index, when compared with placebo (102465).
Obesity. Oral ginger has primarily been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Although some individual research disagrees (40802), a meta-analysis and most individual clinical trials show that taking ginger alone or with other ingredients does not reduce weight by a clinically significant amount when compared with placebo in overweight or obese individuals (20346,20347,96676,109521). Ginger has been taken alone or in combination with green tea and capsaicin; rhubarb, astragalus, red sage, turmeric, and gallic acid (Number Ten); or raspberry ketone (Razberi K, Integrity Nutraceuticals), caffeine, capsicum extract (Capsimax, OmniActive Health Technologies), bitter orange fruit (Advantra Z, Nutratech Inc), L-theanine, and black pepper fruit extract (Biperine, Sabinsa Corporation) (Prograde Metabolism) (20346,20347,40802,96676). Due to the various other ingredients contained in available formulations, any effect from ginger is unclear.
Parturition. It is unclear if bathing in a ginger bath is beneficial for shortening the duration of labor. Details: Preliminary clinical research shows that bathing in 228 liters of water containing 4 drops of ginger essential oil does not shorten the duration of labor when compared with a regular bath (20345).
Polycystic ovary syndrome (PCOS). It is unclear if oral ginger is beneficial for females with PCOS. Details: Preliminary clinical research in females with PCOS shows that taking ginger 500 mg three times daily orally for 8 weeks decreases body weight, body mass index, and levels of follicle stimulating hormone and luteinizing hormone, when compared with placebo. It does not affect testosterone levels (110006).
Postoperative nausea and vomiting (PONV). Evidence for the use of oral ginger for preventing PONV is inconclusive and conflicting. Reasons for the conflicting findings may relate to the ginger formulation used and the outcomes measured. It is unclear if ginger aromatherapy is beneficial for PONV. Details: Some individual clinical studies, as well as a large, recent meta-analysis of the available clinical research, show that taking ginger by mouth 1 hour prior to surgery does not reduce the incidence of 24-hour PONV (3452,3453,17369,99445). Also, the meta-analysis found that, although ginger reduces the severity of PONV when measured on a visual analogue scale (VAS), it does not reduce the severity of PONV when measured on a verbal descriptive scale (VDS). Furthermore, ginger does not reduce the use of rescue antiemetic medications (99445). However, some small, individual clinical studies and a meta-analysis of older clinical research show that taking ginger by mouth prior to surgery reduces the incidence of 24-hour PONV by up to 16% to 38% (722,723,1919,13237,20336,20338,20339). In addition, large clinical trials show that the frequency and severity of PONV 2-6 hours after surgery are similar when ginger 1 gram is given orally or when medications such as metoclopramide or dexmedetomidine are given intravenously prior to undergoing anesthesia (103356,103360). However, taking ginger prior to general anesthesia, in combination with other antiemetics like dexamethasone or cimetidine and metoclopramide, does not seem to reduce nausea and vomiting when compared with the other medications alone (20337,89890). In contrast, other research shows that powdered ginger 1-2 grams 30-60 minutes before induction of anesthesia has been used in most studies showing benefit, occasionally followed by 1 gram of ginger administered two hours after surgery (722,723,13237,20336,20338,103356,103360). Ginger aromatherapy has also been evaluated for the prevention of PONV. Application of 5% ginger essential oil to the wrists of patients prior to the induction of general anesthesia seems to prevent PONV in approximately 80% of treated patients (20334). Also, use of ginger essential oil aromatherapy on a gauze pad results in nausea relief in approximately 67% of patients compared with 40% in the placebo group; however, a blend of essential oils including ginger, spearmint, peppermint, and cardamom, results in nausea relief in 82% of patients (89888).These conflicting findings may be due to differences in outcome measures and the chemical compositions of ginger preparations used in the various clinical studies. Some evidence suggests that the efficacy of ginger for preventing PONV differs based on the formulation used. A network meta-analysis of 18 studies evaluating various ginger preparations, including ginger oil, ginger powder, ginger extract, and a combination of ginger powder and antiemetics, for the prevention of PONV suggests that ginger powder and ginger oil are the most effective formulations for preventing nausea and vomiting, respectively. The analysis also shows that while no ginger formulation is superior to another for the prevention of nausea, ginger powder and ginger oil have a lower risk of postoperative vomiting when compared with ginger extract. A subgroup analysis suggests that ginger seems to be most effective in adults over 30 years of age, when administered preoperatively, and when used for gastrointestinal, hepatobiliary, obstetric, or ophthalmic surgeries (112108).
Postoperative recovery. It is unclear if oral ginger is beneficial for postoperative recovery. Details: One preliminary clinical study in adults who had a tonsillectomy shows that taking a specific ginger supplement (Solgar, Leonia) 500 mg twice daily for 7 days along with acetaminophen and antibiotics modestly improves pain and wound healing when compared with acetaminophen and antibiotics alone (96674).
Postpartum complications. It is unclear if oral ginger is beneficial in patients with postpartum pain. Details: A small clinical study in patients recovering from vaginal delivery shows that taking ginger powder 500 mg 8-hours post-delivery, followed by 250 mg every 8 hours thereafter for 24 hours, reduces postpartum pain by nearly 1 point on a 10-point rating scale when compared with placebo (107904). It is unclear if this improvement would be considered clinically relevant.
Rheumatoid arthritis (RA). One small clinical study suggests that oral ginger may improve some symptoms of RA. Details: Preliminary clinical research in adults with RA shows that taking ginger powder 1500 mg daily for 12 weeks improves disease activity on the Disease Activity Score-28 when compared with placebo (100697).
Swallowing dysfunction. The effects of oral ginger for treating swallowing dysfunction are inconclusive. Reasons for the conflicting findings may relate to the route of administration or the number of treatments provided. Details: Clinical research shows that applying a spray containing ginger and clematix root (Tongyan) to the oropharynx for 28 days is more effective than placebo at treating grade 2 or 3 dysphagia in stroke victims. However, there does not seem to be a beneficial effect in patients with grade 1 dysphagia (20342). Other clinical research in elderly patients with dysphagia shows that taking a single dose of ginger 2 mg orally does not improve swallowing but increases saliva (96671). It is possible that a single dose of ginger is not enough to improve swallowing function.
Toxin-induced liver damage. Oral ginger might help to prevent liver damage in patients using antimycobacterial drugs. Details: Preliminary clinical research shows that a specific ginger supplement (Zintoma, Goldaru) 500 mg taken 30 minutes prior to antimycobacterial drugs daily for 4 weeks reduces the percentage of patients experiencing an increase in liver function enzymes to greater than five times the upper limit of normal by 54% when compared with placebo. Antimycobacterial drugs used for tuberculosis in the study included isoniazid 5 mg/kg, rifampin 10 mg/kg, ethambutol 15 mg/kg, and pyrazinamide 25 mg/kg daily (96670).
Traumatic brain injury (TBI). Oral ginger has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary research in young adults with subjective memory dysfunction associated with mild TBI, shows that taking a combination of ginger 36 mg and boswellia 360 mg (Memoral) every 8 hours orally for one month improves scores for some, but not all, parameters on an auditory-visual learning test performed at one and three months, when compared with placebo. Total learning scores increased by about 7.5 points with the ginger combination product, compared with 4 points for placebo (110132). It is unclear if these effects are due to ginger, boswellia, or the combination.
Ulcerative colitis. It is unclear if oral ginger is beneficial for improving symptoms of ulcerative colitis. Details: Preliminary clinical research in adults with ulcerative colitis shows that taking ginger powder 1000 mg twice daily for 12 weeks improves disease activity as measured by the Simple Clinical Colitis Activity Index Questionnaire when compared with taking placebo. However, taking ginger did not improve quality of life, stool frequency, bowel distress, or flatulence when compared with placebo (100694). It is possible that this study was not adequately powered to detect a difference in these secondary outcomes.
Upper respiratory tract infection (URTI). Although there has been interest in using oral ginger for various upper respiratory tract infections, there is insufficient reliable information about the clinical effects of ginger for this condition.
Vertigo. It is unclear if oral ginger is beneficial for improving symptoms of vertigo. Details: A small clinical study shows that taking 1 gram of ginger orally as a single dose prior to stimulated vertigo seems to reduce symptoms of vertigo, including nausea, when compared with placebo. However, it does not seem to reduce nystagmus (7623). More evidence is needed to rate ginger for these uses.

(Read more about GINGER)

MARITIME PINE (French Maritime Pine bark extract)

POSSIBLY EFFECTIVE

Asthma. Oral maritime pine bark extract, taken as an adjunct to conventional asthma medications, may improve symptoms and reduce rescue inhaler use in patients with asthma. Details: Three small clinical studies in children and adults with asthma of varying severity show that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 1 mg/lb body weight or 100 mg daily in addition to conventional asthma medications increases peak expiratory flow, decreases asthma symptoms, and decreases the need for rescue medications when compared with conventional therapy alone (13120,50863,50926). Maritime pine bark extract has not been studied as monotherapy for asthma and should not be used in place of conventional medicine for this purpose.
Chronic venous insufficiency (CVI). Oral maritime pine bark extract may improve leg pain and heaviness and reduce edema in patients with CVI. Details: Several clinical studies in patients with CVI show that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) reduces edema, the rate of ankle swelling, and symptoms of leg pain and heaviness when used for 3-12 weeks. The most commonly used dose is 100-120 mg three times daily (2451,2462,2493,7693,50892). However, lower doses of 50 mg three times daily (16906,50892,50900,50915) or 45-100 mg once daily also seem to be effective (2435,97401). When compared with the use of below-knee compression stockings worn throughout the day, maritime pine bark reduces induration and the rate of ankle swelling when compared to baseline in patients with CVI. While both treatments reduce venous edema and pain when compared with baseline, a more pronounced reduction is seen in patients taking the maritime pine bark extract (97401). Other clinical research in adults who have had CVI for more than 3 years shows that taking the same extract, 50 mg three times daily for 8 weeks, in addition to wearing compression stockings, improves microcirculation and subjective symptom scores when compared with compression stockings alone (103616). However, compliance with the use of compression stockings in this study was poor.
Osteoarthritis. Small clinical studies suggest that oral maritime pine bark extract may modestly improve symptoms and reduce the need for analgesics in patients with knee osteoarthritis. Details: Two small clinical studies in patients with knee osteoarthritis shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 100-150 mg daily for 3 months reduces overall osteoarthritis symptoms, pain, and the use of anti-inflammatory medication when compared with placebo (50903,50905). Topical maritime pine bark has also been evaluated. Observational research in patients with knee osteoarthritis found that applying standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 220 mg, as two patches daily, for three weeks is associated with reduced pain and reduced need for rescue analgesics when compared with control (100356).

POSSIBLY INEFFECTIVE

Hyperlipidemia. Oral maritime pine bark extract may not improve lipid levels in patients with hyperlipidemia. Details: Although individual clinical trials have shown mixed results (7693,91965,97408), a meta-analysis of 4 small clinical trials in patients with hyperlipidemia shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 100-150 mg daily for 4-24 weeks does not reduce total cholesterol, low-density lipoprotein (LDL) cholesterol, or triglyceride levels when compared with a control (100357).

INSUFFICIENT RELIABLE EVIDENCE to RATE

Age-related cognitive decline. It is unclear if oral maritime pine bark extract is beneficial in elderly patients with age-related cognitive decline. Details: One observational registry study in healthy elderly patients ages 55-70 years has found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 100 mg daily for 12 months is associated with improved cognitive function, mental performance, and attention when compared with matched controls (97405). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study. Also, a small clinical study in healthy elderly patients 60-85 years of age shows that taking the same extract, 150 mg daily for 3 months, improves spatial working memory, but not numeric working memory, episodic memory, attention, or psychomotor performance, when compared with placebo (50906).
Aging skin. Although there has been interest in using oral and topical maritime pine for aging skin, there is insufficient reliable information about the clinical effects of maritime pine for this purpose.
Allergic rhinitis (hay fever). It is unclear if oral maritime pine bark extract is beneficial in people with allergic rhinitis. Details: A small clinical study in patients with birch allergies shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg twice daily, starting at least 5 weeks before allergy season, decreases nasal symptoms associated with birch allergies when compared with placebo (17300).
Androgenic alopecia. It is unclear if oral maritime pine bark is beneficial for androgenic alopecia. Details: A small clinical study in postmenopausal patients conducted in China shows that taking maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 6 months improves hair density when compared to baseline (112713). However, the interpretation of these findings is limited by the lack of a statistical comparison to the placebo group.
Antidepressant-induced sexual dysfunction. It is unclear if oral maritime pine bark is beneficial for improving sexual function in adults taking escitalopram. Details: A small, open-label clinical study shows that taking standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg daily for 4 months with escitalopram 10-20 mg daily seems to improve sexual dysfunction when compared with escitalopram alone (100361).
Atherosclerosis. Oral maritime pine bark extract has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A non-randomized clinical trial in adults with atherosclerosis shows that taking a specific maritime pine bark product (Pycnogenol, Horphag Research) 150 mg and gotu kola 225 mg, in two divided doses daily for 3 months, reduces plaque height and length and increases plaque echogenicity and stability when compared to control (97030). However, these benefits may be at least partially due to gotu kola. Another non-randomized clinical study in adults with atherosclerotic plaques and no other cardiovascular risk factors shows that taking Pycnogenol 100 mg and gotu kola extract 100 mg daily for up to 4 years reduces plaque progression and increases plaque echogenicity to a greater extent than Pycnogenol alone or no treatment at all. Taking Pycnogenol with gotu kola is also associated with a reduced rate of clinical vascular events, including angina, myocardial infarction, minor transient ischemic attacks (TIAs), and minor strokes, when compared with taking Pycnogenol alone or receiving no treatment at all (97029).
Athletic performance. It is unclear if oral maritime pine bark extract is beneficial for improving exercise capacity in recreationally trained adults; the available evidence is conflicting. Details: One small clinical study shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 200 mg orally daily for 30 days improves exercise capacity during a treadmill test in recreational athletes aged 20-35 years (2554). Additionally, an observational registry study found that taking this same maritime pine bark extract 100 mg orally daily for 8 weeks along with training improves performance in the Army Physical Fitness Test, including reducing two-mile treadmill time by about 45-60 seconds and increasing the number of push-ups and sit-ups by about 5-7 when compared to control training alone. Taking this maritime pine bark extract during training also appears to improve total triathlon time by about 6 minutes when compared with training alone (91966). However, the validity of this finding is limited by the unblinded, non-randomized nature of the study. Additionally, a small study in college-age males who exercise regularly shows that taking the same maritime pine bark extract 800 mg daily, starting 14 days prior to a cycle ergometer test and continuing for 2 days after, does not improve maximum oxygen consumption or power generated in the test when compared with placebo (103617). Maritime pine extract has also been studied in combination with other ingredients. A small clinical study in non-professional athletes shows that taking a combination product (PycnoRacer, Kobayashi Pharmaceutical Company) containing maritime pine extract 15 mg, L-leucine 0.6 grams, L-arginine 0.3 grams, L-isoleucine 0.3 grams, and L-valine 0.3 grams four times daily for 3 weeks during training improves running distance by about 19%, compared with 9% in athletes drinking water plus Gatorade. Maritime pine park also improved maximal oxygen consumption and reduced subjective scores of muscle pain and cramps when compared with water and Gatorade (103613). It is unclear if these benefits are due to maritime pine, other ingredients, or the combination.
Attention deficit-hyperactivity disorder (ADHD). It is unclear if oral maritime pine bark extract is beneficial in children or adults with ADHD. Details: A small clinical study in adults with ADHD shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) does not seem to improve ADHD symptoms when compared with placebo (9984). However, a small clinical study in children with ADHD shows that taking this standardized maritime pine bark extract 1 mg/kg daily for one month appears to improve attention and hyperactivity scores when compared with placebo (50891).
Behcet syndrome. It is unclear if oral maritime pine bark extract is beneficial in patients with Behcet syndrome. Details: A small clinical study in patients with Behcet syndrome shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 3 weeks reduces skin ulcer size and improves self-reported symptoms of burning and pain when compared to baseline (100358). The validity of these findings is limited by the lack of a comparator group.
Benign prostatic hyperplasia (BPH). It is unclear if oral maritime pine bark extract is beneficial in patients with BPH. Details: A small observational registry study in patients with BPH found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 8 weeks is associated with modest improvement of symptoms such as bladder emptying, urgency, flow, straining, and nocturia (100359). This study was limited by small size, reporting inaccuracies, and its unblinded, non-randomized design.
Cognitive function. Small clinical studies suggest that oral maritime pine bark extract might improve cognitive function in healthy adults. Details: A small observational registry study in healthy adults aged 30-55 years found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 12 weeks is associated with slightly improved memory and cognition when compared with matched controls (97410). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study. A small clinical study in healthy college students also shows that taking the same extract 100 mg daily for 2 months seems to reduce failed tests by 4.5% and improve average test scores by about 8% when compared with control (50928).
Cognitive impairment. It is unclear if oral maritime pine bark extract improves cognitive function in patients with mild cognitive impairment. Details: An observational registry study in adults with mild cognitive impairment found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 8 weeks improves global cognitive function when compared to no supplementation. All patients in this study also received standard management of mild cognitive impairment, which included lifestyle modifications such as improved sleep, physical exercise, reduced sugar and salt intake, lowering cardiovascular risk factors, and avoiding use of stimulants or depressants (97406). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Common cold. It is unclear if oral maritime pine bark extract is beneficial in the treatment of the common cold. Details: An observational registry study in otherwise healthy adults with a cold found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg twice daily, along with best management for colds, is associated with about one less day of a perceived cold when compared to "best management" alone. This standardized maritime pine bark extract is also linked to reduced use of over-the-counter products to manage symptoms in cases of colds lasting longer than 4 days (91962). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Dental plaque. It is unclear if chewing gum containing maritime pine bark extract can reduce dental plaque. Details: A small clinical study shows that chewing a minimum of six pieces of gum containing a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 5 mg daily for 14 days reduces gingival bleeding by 55% and prevents an increase in gingival plaque when compared with a control sugar-free gum (50857).
Diabetes. Small clinical studies suggest that oral maritime pine bark extract may modestly improve glycemic control in patients with type 2 diabetes. Details: Three small clinical studies in patients with type 2 diabetes show that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50-200 mg daily for 3-12 weeks modestly decreases blood glucose and glycated hemoglobin (HbA1C) levels when compared with placebo (15521,15522,50908). Another small clinical trial in patients with type 2 diabetes and microalbuminuria shows that taking a different standardized maritime pine bark extract (Oligopin, DRT Group) 100 mg daily for 8 weeks reduces HbA1c by around 1%, but does not reduce fasting blood glucose, when compared with placebo (105781).
Diabetic foot ulcers. It is unclear if oral or topical maritime pine bark extract is beneficial for diabetic foot ulcers. Details: A small clinical study in patients with diabetic foot ulcers shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily orally as well as applying the extract topically 100 mg daily heals ulcers in 89% of subjects compared with 61% of control subjects. Using oral or topical maritime pine bark extract alone seems to result in complete ulcer healing in about 85% of subjects (50896).
Diabetic microangiopathy. It is unclear if oral maritime pine bark extract is beneficial in patients with diabetic microangiopathy. Details: A small, unblinded clinical study in patients with diabetic microangiopathy, symptoms of neuropathy, and edema in the absence of severe cardiovascular disease shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg three times daily for 4 weeks improves microcirculation (measured by laser Doppler flowmetry) and symptoms when compared with no treatment (15523).
Diabetic retinopathy. It is unclear if oral maritime pine bark extract is beneficial in patients with diabetic retinopathy. Details: A small, unblinded clinical study in patients with retinopathy due to various causes, including diabetes, atherosclerosis, or central venous thrombosis, shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg three times daily for 2 months may slow or prevent further deterioration of retinal function when compared with no treatment (2536).
Dry mouth. It is unclear if oral maritime pine bark extract is beneficial in patients with dry mouth. Details: Two small observational studies in otherwise healthy adults or patients with diabetes suggest that adding a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) for 2 weeks along with standard saliva supplements is associated with improvement in patient-reported mouth dryness, salivary flow, and the number of small mucosal breaks when compared with saliva supplements alone. One study dosed maritime pine bark extract 150 mg orally daily and the other used a spray formulation dosed 10 mg six times daily (103612,112714). However, the validity of these findings is limited by the unblinded, non-randomized nature of the studies.
Dysmenorrhea. It is unclear if oral maritime pine bark extract is beneficial in patients with dysmenorrhea. Details: Two small clinical studies in patients with dysmenorrhea show that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 30-60 daily for up to 3 menstrual cycles reduces pain when compared to baseline (15424,50904). The validity of this finding is limited by the lack of a comparator group.
Erectile dysfunction (ED). Small clinical studies suggest that oral maritime pine bark extract, taken alone or in combination with L-arginine, may modestly improve sexual function in patients with ED. Details: Several small clinical studies in adults with ED show that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) at a dose of 120 mg daily for 3 months, either alone (12012) or in combination with L-arginine (10416,32149,50924), might improve sexual function when compared with placebo or baseline measurements. It seems to take up to 3 months of treatment for significant improvement. Similarly, a meta-analysis of 2 small clinical studies in males with mild to moderate ED shows that taking maritime pine 80 mg with L- arginine daily for 1-6 months improves International Index of Erectile Dysfunction scores by 9 points when compared with control (112715). It is unclear if this effect is from maritime pine, L-arginine, or the combination.
Exercise-induced muscle soreness. Oral maritime pine bark extract has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in non-professional athletes shows that taking a combination product (PycnoRacer, Kobayashi Pharmaceutical Company) containing maritime pine extract 15 mg, L-leucine 0.6 grams, L-arginine 0.3 grams, L-isoleucine 0.3 grams, and L-valine 0.3 grams four times daily for 3 weeks during training improves subjective scores for muscle pain and cramps when compared with water plus Gatorade (103613). It is unclear if these benefits are due to maritime pine, other ingredients, or the combination.
Glaucoma. Oral maritime pine has only been evaluated in combination with other ingredients; its effects when used alone is unclear. Details: One small, unblinded clinical trial in Japanese patients with open-angle glaucoma shows that taking a specific product (Sante Glagenox, Saten Pharmaceutical Co. Ltd.) containing maritime pine extract 40 mg and bilberry fruit extract 90 mg daily for 4 weeks reduces intraocular pressure by 8.7% when compared to baseline (104192). The validity of this finding is limited by the lack of a comparator group.
Heart failure. Oral maritime pine bark extract has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small observational study in patients with mild to moderate heart failure has found that taking a specific combination product (PycnoQ10, Natural Health Science Inc.) containing a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) and coenzyme Q10 for 12 weeks is associated with improved exercise capacity and heart function (44178). It is unclear if these findings are due to maritime pine, coenzyme Q10, or the combination.
Hemorrhoids. It is unclear if oral or topical maritime pine bark extract is beneficial in patients with hemorrhoids. Details: A small clinical study in patients with acute hemorrhoidal episodes shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150-300 mg daily orally, alone or in combination with a cream containing 0.5% standardized maritime pine bark extract (Pycnogenol, Horphag Research) for 7 days, improves both quality of life and hemorrhoidal symptoms when compared with placebo tablets/cream (50912). Additionally, an observational registry study in postpartum adults with internal or external hemorrhoids found that taking this same extract of maritime pine bark 150 mg daily for 6 months, in conjunction with standard hemorrhoid care, is associated with improved symptoms, including thrombosis, pain, swelling, and bleeding, when compared to standard care alone (97416). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Hypertension. It is unclear if oral maritime pine bark reduces blood pressure; the available research is conflicting. Details: A very small clinical study in patients with mild hypertension (systolic 140-159 mm Hg; diastolic 90-99 mm Hg) shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 200 mg daily for 8 weeks may modestly reduce systolic, but not diastolic, blood pressure when compared with placebo (10214). Another very small study in hypertensive patients treated with ramipril, taking this same standardized maritime pine bark extract 50 mg three times daily for 6 months, appears to further reduce diastolic, but not systolic, blood pressure (50913). Conflicting results have been reported with other maritime pine products. A small clinical study in adults with untreated, mild hypertension shows that taking a different standardized extract of maritime pine (Oligopin, DRT Group), 75 mg twice daily for 5 weeks, does not lower systolic or diastolic blood pressure when compared with placebo (97407). Also, a small clinical study in obese patients with prehypertension or hypertension shows that taking a different maritime pine bark extract (Toyo-FVG, Toyo Bio-Pharma) 200 mg daily for 12 weeks does not lower systolic or diastolic blood pressure when compared with placebo (50919). Results of meta-analyses are also contradictory. An analysis of 7 clinical trials using maritime pine bark extract 90-200 mg daily for 2-24 weeks shows no significant effect overall on systolic or diastolic blood pressure, mean arterial pressure, or pulse pressure (103609). However, an analysis of 12 trials using doses of 60-200 mg daily for 4-24 weeks shows a mean reduction of about 3 mmHg in systolic blood pressure, and about 2 mmHg in diastolic blood pressure. There was high heterogeneity between the studies, and the effect on diastolic blood pressure was only seen with a treatment duration of at least 12 weeks (103610).
Idiopathic interstitial pneumonia. Oral maritime pine bark extract has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small observational registry study in males less than 65 years old with idiopathic interstitial pneumonia has found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg three times daily in combination with gotu kola (Centellicum; Horphag Research) 225 mg three times daily for 8 months is associated with a modest improvement in Karnofsky Performance Scale scores and a reduction in fatigue when compared with pirfenidone (108862). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Irritable bowel syndrome (IBS). It is unclear if oral maritime pine bark extract is beneficial in patients with IBS. Details: An observational registry study in adults with idiopathic IBS found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 4 weeks, in conjunction with standard treatment, is associated with reduced abdominal pain, cramps, and the use of medical care and rescue medications when compared to standard treatment alone. In both groups, standard treatment included specific nutritional recommendations and Buscopan Compositum, hyoscine-N-butylbromide, or acetaminophen for pain relief (97402). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Jet lag. It is unclear if oral maritime pine bark extract can prevent or treat jet leg. Details: An observational registry study found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for up to 10 days, starting 3 days before a plane flight, is associated with reduced signs and symptoms of jet lag when compared to control (97437). Additionally, a small clinical study shows that taking this extract 50 mg three times daily for 7 days, starting 2 days before a plane flight, reduces jet lag symptoms and the average duration of symptoms by a little over 1 day when compared with placebo (97412).
Leg cramps. It is unclear if oral maritime pine bark extract is beneficial for leg cramps. Details: A small clinical study in patients experiencing at least 4 episodes of leg cramps per week associated with athletic activity, venous insufficiency, or an unknown cause shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 200 mg daily for 4 weeks may decrease the incidence of leg cramps when compared to baseline (15524). The validity of this finding is limited by the lack of a comparator group.
Male infertility. Although there has been interest in using oral maritime pine for male infertility, there is insufficient reliable information about the clinical effects of maritime pine for this purpose.
Melasma. It is unclear if oral maritime pine bark extract is beneficial for melasma. Details: A small clinical study in females with melasma shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 75 mg twice daily for 60 days, along with topical application of sunscreen during the day and a triple cream containing hydroquinone, tretinoin, and fluocinolone at night, improves scores related to melasma severity and aesthetics, but not quality of life, when compared with placebo plus sunscreen and triple cream (105782).
Meniere disease. It is unclear if oral maritime pine bark extract is beneficial in patients with Meniere disease. Details: Observational registry research in patients with Meniere disease found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily along with standard treatment is associated with a greater reduction in the severity of tinnitus and the number of work-days lost when compared with standard treatment alone. After 6 months of treatment, about 87% of patients taking maritime pine bark were asymptomatic, compared to about 35% of patients receiving standard treatment alone (97413). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Menopausal symptoms. Small clinical studies suggest that oral maritime pine bark extract might improve some menopausal symptoms. Details: Several small clinical studies in patients with menopausal symptoms shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 60-200 mg daily for 2-6 months modestly reduces perimenopausal symptoms, including tiredness, headache, depression and anxiety, sleep disturbances, vaginal dryness, hot flashes, and loss of memory, when compared with placebo or control (14899,50927,50945).
Metabolic syndrome. It is unclear if oral maritime pine bark extract is beneficial in patients with metabolic syndrome. Details: A small clinical study in patients with metabolic syndrome shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg three times daily for 6 months lowers triglyceride levels by 46 mg/dL, increases high-density lipoprotein (HDL) cholesterol levels by about 10 mg/dL, reduces fasting plasma glucose by 18 mg/dL, and lowers systolic and diastolic blood pressure by 7 mmHg and 5 mmHg, respectively, when compared to baseline. The validity of these findings is limited by the lack of statistical comparison to a control group. Taking the maritime pine bark extract was also associated with a reduction in the percentage of patients presenting with five risk factors of metabolic syndrome (91960).
Oral mucositis. It is unclear if topical maritime pine bark extract is beneficial in children with chemotherapy-related oral mucositis. Details: A small clinical study in children 6-15 years of age with chemotherapy-related oral mucositis shows that application of a solution containing a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 1 mg/kg in three divided doses daily for one week promotes complete healing in 58% of patients and improved healing in 38% of patients. This improvement was significantly greater than treatment with glycerine solution and similar to treatment with vitamin E solution (91964).
Osteopenia. It is unclear if maritime pine bark extract is beneficial in patients with osteopenia. Details: A small clinical study in postmenopausal adults with osteopenia shows that taking a standardized extract of maritime pine bark (Oligopin, DRT Group) 150 mg daily for 12 weeks improves markers of bone turnover when compared with placebo (105783). It is unknown if maritime pine bark extract improves bone mineral density or reduces the risk of fractures in patients with osteopenia.
Parkinson disease. It is unclear if oral maritime pine bark extract is beneficial in patients with Parkinson disease. Details: Two small observational studies in adults with mild to moderate Parkinson disease suggest that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 4 or 8 weeks in conjunction with carbidopa/levodopa therapy is associated with a reduction in scores for tremor, bradykinesia, and rigidity when compared with carbidopa/levodopa therapy alone. Maritime pine is also associated with an increase in the Karnofsky Performance Status Scale score from approximately 75 (cares for self, unable to carry on normal activity or do active work) to approximately 85 (normal activity with effort, some signs or symptoms of disease), compared with little to no change from a score of around 75 in the control group (103614,112716).
Pregnancy-related pain. It is unclear if oral maritime pine bark extract is beneficial for reducing pain during the third trimester of pregnancy. Details: A small clinical study in patients in the third trimester of pregnancy shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 30 mg daily modestly reduces lower back pain, hip joint pain, pelvic pain, and pain due to varicose veins or calf cramps when compared with a control group (15423).
Psoriasis. It is unclear if oral maritime pine bark extract is beneficial in patients with psoriasis. Details: An observational registry study in adults with moderate to severe plaque psoriasis found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 12 weeks along with standard treatment is associated with improved quality of life, increased water and moisture content of the skin, reduced plaque severity and total affected body area, and reduced use of corticosteroids when compared with standard treatment alone (97417). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Raynaud syndrome. It is unclear if oral maritime pine bark extract is beneficial in patients with Raynaud syndrome. Details: A small clinical study in females with mild, primary Raynaud syndrome shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg twice daily for 4 weeks decreases coldness, burning pain, paresthesias, skin color changes, and low temperature areas of the hands when compared with lifestyle changes alone. The lowest finger temperature increased by 30% in those taking this product, compared with 13% in those implementing lifestyle changes alone (103615).
Restless legs syndrome (RLS). It is unclear if oral maritime pine is beneficial for RLS. Details: A small observational study in adults with RLS suggests that taking maritime pine bark extract (Pycnogenol, Horphag Research) 150 mg daily along with standard management (i.e., regular sleep, exercise, vitamin C, B vitamins, proper footwear, and instruction on diet and posture) improves self-reported symptoms associated with RLS when compared to baseline. Maritime pine bark may also be associated with less analgesic use compared with standard management alone (112717). However, the interpretation of these findings, other than analgesic use, is limited by lack of a statistical comparison to the other study group.
Sarcopenia. It is unclear if oral maritime pine bark extract is beneficial in patients with sarcopenia. Details: Observational registry research in adults over 70 years of age with signs of muscle loss has found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily along with strength training for 2 months improves hand grip strength, walking distance, total weight lifted, number of steps climbed, and general fitness scores when compared with strength training alone (97404). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Sexual dysfunction. Oral maritime pine bark extract has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in females with sexual dysfunction shows that taking a specific combination tablet (Lady Prelox, Horphag Research) containing a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 20 mg, L-arginine 200 mg, L-citrulline 200 mg, and a standardized rose hip extract (Rosvita) orally 50 mg daily for 8 weeks, in combination with a management program consisting of lifestyle, diet, exercise, and stress control changes, improves overall sexual function when compared with the management program alone (91963). Taking the same product in a dose of 2 tablets twice daily for 8 weeks, in addition to the lifestyle management program, improves vaginal dryness in pre- and post-menopausal patients when compared with lifestyle management alone (103611). The effect of maritime pine alone on sexual dysfunction is unclear.
Sjogren syndrome. It is unclear if oral maritime pine bark extract is beneficial in patients with Sjogren syndrome. Details: A very small observational study in patients with Sjogren syndrome found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily in addition to standard therapy is associated with a reduction in dry eye, dry mouth, and the need for corticosteroids when compared with standard therapy alone (100360).
Systemic lupus erythematosus (SLE). It is unclear if oral maritime pine bark extract is beneficial in patients with SLE. Details: A very small clinical study in adults with SLE shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 120 mg daily for 30 days, followed by 60 mg daily for 30 days, modestly reduces symptoms of SLE in some patients when compared with control (50851).
Traumatic brain injury (TBI). It is unclear if oral maritime pine bark extract is beneficial in patients with TBI. Details: A clinical study in patients admitted to the intensive care unit with TBI shows that administering a standardized maritime pine bark extract (Oligopin, DRT Group) 50 mg three times daily with enteral nutrition for 10 days improves scores on the sequential organ failure assessment (SOFA) and APACHE II [Acute Physiology and Chronic Health Evaluation II], as well as nutritional status, when compared with placebo. At day 28, survival rate was 86% in the treatment group, compared to 71% in the placebo group; however, this difference was not statistically significant (108861).
Urinary tract infections (UTIs). It is unclear if oral maritime pine bark extract is beneficial in patients with recurrent UTIs or interstitial cystitis. Details: An observational registry study in adults aged 30-40 years with a recent history of recurrent UTIs has found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 2 months is associated with a normal urinalysis in 92% of patients, compared with 68% of those who received no supplementation (108860). Another observational registry study in patients with recurrent UTIs or interstitial cystitis has found that taking this same dose for 2 months is associated with a normal urinalysis in 100% of patients, compared with 35% of patients who took oral cranberry extract 400 mg daily and 36% of those who received no treatment (108859). However, the validity of these findings is limited by the unblinded, non-randomized nature of these studies.
Varicose veins. It is unclear if oral maritime pine bark extract is beneficial in patients with varicose veins. Details: Observational registry research in postpartum adults has found that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg daily for 6 months, in addition to using below-knee compression stockings, is associated with reduced edema, leg cramps, total number of varicose veins, and number of visible spider vein clusters when compared with compression stockings alone (97403). However, the validity of these findings is limited by the unblinded, non-randomized nature of the study.
Venous thromboembolism (VTE). While some conflicting evidence exists, low-quality clinical research suggests that oral maritime pine bark extract might prevent superficial thrombosis during flights and reduce the incidence of post-thrombotic syndrome (PTS) in patients with a history of deep vein thrombosis (DVT). Details: Observational registry research has found that a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 150 mg daily for 10 days is not associated with reduced occurrence of DVT, a type of VTE, when compared with compression stockings or control (97437). However, an older clinical study in patients at moderate or high risk for thrombotic events shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 200 mg 2-3 hours before a flight seems to reduce superficial thrombosis, but not DVT risk, when compared with placebo (50874). Some observational research also has also found that taking standardized maritime pine bark extract (Pycnogenol, Horphag Research) is associated with reduced post-thrombotic syndrome (PTS) and recurrent DVT (100355). Also, some clinical research shows that taking standardized extract of maritime pine bark (Pycnogenol, Horphag Research) daily for one year, while wearing or not wearing compression stockings, reduces the incidence of PTS in patients with a single prior episode of DVT (50925). Maritime bark has also been studied in combination with other natural products. There is some evidence that taking a specific combination product (Flite Tabs, Aidan Products) before a flight and then again 6 hours later might decrease the risk of DVT during long-haul plane flights in high-risk patients. The product combines a blend of 150 mg of standardized extract of maritime pine bark (Pycnogenol, Horphag Research) plus nattokinase (12075).
Wrinkled skin. It is unclear if oral maritime pine bark extract can reduce wrinkles or improve skin health in people with significant sun exposure. Details: A small crossover study in Chinese adults working outdoors shows that taking a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 50 mg twice daily for 12 weeks improves skin hydration and reduces transepidermal water loss and skin darkening when compared with placebo (105784). More evidence is needed to rate maritime pine for these uses.

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Safety view details

Below is general information about the safety of the known ingredients contained in the product Zinopin. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

GINGER

LIKELY SAFE ...when used orally and appropriately. Ginger has been safely used in multiple clinical trials (721,722,723,5343,7048,7084,7085,7400,7623,11346)(12472,13080,13237,13244,17369,17928,17929,89889,89890,89894)(89895,89898,89899,90102,96252,96253,96259,96260,96669) (101760,101761,101762,103359,107903).

POSSIBLY SAFE ...when used topically and appropriately, short-term (89893,89897).

CHILDREN: LIKELY SAFE
when consumed in the amounts typically found in foods.

CHILDREN: POSSIBLY SAFE
when used orally and appropriately, short-term. Ginger powder has been used with apparent safety at a dose of up to 750 mg daily for 4 days in girls aged 14-18 years (96255).

PREGNANCY: LIKELY SAFE
when consumed in the amounts typically found in foods.

PREGNANCY: POSSIBLY SAFE
when used for medicinal purposes. Despite some early reports of adverse effects (721,7083) and one observational study suggesting that taking dried ginger and other herbal supplements during the first 20 weeks of pregnancy marginally increased the chance of stillbirth (96254), most research shows that ginger is unlikely to cause harm to the baby. The risk for major malformations in infants of parents who took ginger when pregnant does not appear to be higher than the baseline rate of 1% to 3% (721,1922,5343,11346,13071,13080,96254). Also, other research suggests that ginger intake during various trimesters does not significantly affect the risk of spontaneous abortion, congenital malformations, stillbirth, perinatal death, preterm birth, low birth weight, or low Apgar scores (18211,90103). Ginger use has been associated with an increase in non-severe vaginal bleeding, including spotting, after week 17 of pregnancy (18211).

LACTATION: LIKELY SAFE
when consumed in the amounts typically found in foods. There is insufficient reliable information available about the safety of ginger when used for medicinal purposes; avoid amounts greater than those found in foods.

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MARITIME PINE (French Maritime Pine bark extract)

POSSIBLY SAFE ...when used orally and appropriately. A standardized extract of maritime pine bark (Pycnogenol, Horphag Research) has been safely used in doses of 50-450 mg daily for up to one year (2435,2451,2462,2554,2556,7693,10214,10416,12012,14899) (15424,15521,15522,15523,15524,100359,105782). The same extract has also been used with apparent safety in a dose of 800 mg daily for 16 days (103617). A different standardized extract of maritime pine bark (Oligopin, DRT Group) has been used with apparent safety in doses of up to 150 mg daily for up to 12 weeks (105781,105783). ...when applied topically as a cream or powder. A standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 0.5% cream has been used for up to 7 days (50912). Powder from a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) 100 mg has been applied to the skin daily for up to 6 weeks (50887,50896).

CHILDREN: POSSIBLY SAFE
when used orally and appropriately, short-term. A standardized extract of maritime pine bark (Pycnogenol, Horphag Research), administered in a dose of 1 mg/lb body weight daily, has been safely used in a clinical study of children aged 6-18 years for up to 3 months (13120).

PREGNANCY: POSSIBLY SAFE
when used orally during the third trimester of pregnancy. In one small clinical study, a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) has been used at a dose of 30 mg daily with apparent safety during the third trimester of pregnancy (15423). However, more evidence is needed; use cautiously or avoid using.

LACTATION:
There is insufficient reliable information available regarding the safety of maritime pine when used during lactation; avoid using.

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Interactions with Drugs view details

Below is general information about the interactions of the known ingredients contained in the product Zinopin. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

GINGER

ANTICOAGULANT/ANTIPLATELET DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = B

Ginger may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs. However, research is conflicting.

Details

Laboratory research suggests that ginger inhibits thromboxane synthetase and decreases platelet aggregation (7622,12634,20321,20322,20323,96257). However, this has not been demonstrated unequivocally in humans, with mixed results from clinical trials (96257). Theoretically, excessive amounts of ginger might increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.

ANTIDIABETES DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Theoretically, taking ginger with antidiabetes drugs might increase the risk of hypoglycemia.

Details

Animal and human research suggests that ginger might increase insulin levels and/or decrease blood glucose levels (12636,20402,20403,20404,20405,89895,89896,107898).

CALCIUM CHANNEL BLOCKERS

Interaction Rating = Minor Be watchful with this combination.

Severity = Moderate • Occurrence = Unlikely • Level of Evidence = D

Theoretically, taking ginger with calcium channel blockers might increase the risk of hypotension.

Details

Some animal and in vitro research suggests that ginger has hypotensive and calcium channel-blocking effects (12633). Another animal study shows that concomitant administration of ginger and the calcium channel blocker amlodipine leads to greater reductions in blood pressure when compared with amlodipine alone (107901).

CYCLOSPORINE (Neoral, Sandimmune)

Interaction Rating = Minor Be watchful with this combination.

Severity = Mild • Occurrence = Possible • Level of Evidence = D

Theoretically, when taken prior to cyclosporine, ginger might decrease cyclosporine levels.

Details

In an animal model, ginger juice taken 2 hours prior to cyclosporine administration reduced the maximum concentration and area under the curve of cyclosporine by 51% and 40%, respectively. This effect was not observed when ginger juice and cyclosporine were administered at the same time (20401).

CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the levels of CYP1A2 substrates.

Details

In vitro research shows that ginger inhibits CYP1A2 activity (111544). However, this interaction has not been reported in humans.

CYTOCHROME P450 2B6 (CYP2B6) SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the levels of CYP2B6 substrates.

Details

In vitro research shows that ginger inhibits CYP2B6 activity (111544). However, this interaction has not been reported in humans.

CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the levels of CYP2C9 substrates.

Details

In vitro research shows that ginger inhibits CYP2C9 activity (111544). However, this interaction has not been reported in humans.

CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the levels of CYP3A4 substrates.

Details

In vitro research shows that ginger inhibits CYP3A4 activity (111544). However, this interaction has not been reported in humans.

LOSARTAN (Cozaar)

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase levels of losartan and the risk of hypotension.

Details

In animal research, ginger increased the levels and hypotensive effects of a single dose of losartan (102459). It is not clear if ginger alters the concentration or effects of losartan when taken continuously. Additionally, this interaction has not been shown in humans.

METRONIDAZOLE (Flagyl)

Interaction Rating = Minor Be watchful with this combination.

Severity = Mild • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase levels of metronidazole.

Details

In an animal model, ginger increased the absorption and plasma half-life of metronidazole. In addition, the elimination rate and clearance of metronidazole was significantly reduced (20350).

NIFEDIPINE (Procardia)

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = B

Ginger may have antiplatelet effects and increase the risk of bleeding if used with nifedipine.

Details

Clinical research shows that combined treatment with ginger 1 gram plus nifedipine 10 mg significantly inhibits platelet aggregation when compared to nifedipine or ginger alone (20324).

P-GLYCOPROTEIN SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the absorption and blood levels of P-glycoprotein (P-gp) substrates.

Details

In vitro research shows that ginger inhibits drug efflux by P-gp, potentially increasing absorption and serum levels of P-gp substrates (111544).

PHENPROCOUMON (Marcoumar, others)

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = D

Ginger might increase the risk of bleeding with phenprocoumon.

Details

Phenprocoumon, a warfarin-related anticoagulant, might increase the international normalized ratio (INR) when taken with ginger. There is one case report of a 76-year-old woman with a stable INR on phenprocoumon that increased to greater than 10 when she began consuming dried ginger and ginger tea (12880).

WARFARIN (Coumadin)

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = B

Ginger might increase the risk of bleeding with warfarin.

Details

Laboratory research suggests that ginger might inhibit thromboxane synthetase and decrease platelet aggregation (7622,12634,20321,20322,20323). In one case report, ginger increased the INR when taken with phenprocoumon, which has similar pharmacological effects as warfarin (12880). In another case report, ginger increased the INR when taken with a combination of warfarin, hydrochlorothiazide, and acetaminophen (20349). A longitudinal analysis suggests that taking ginger increases the risk of bleeding in patients taking warfarin for at least 4 months (20348). However, research in healthy people suggests that ginger has no effect on INR, or the pharmacokinetics or pharmacodynamics of warfarin (12881,15176). Until more is known, monitor INRs closely in patients taking large amounts of ginger.

(Read more about GINGER)

MARITIME PINE (French Maritime Pine bark extract)

ANTICOAGULANT/ANTIPLATELET DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.

Details

Clinical research suggests that maritime pine bark extract inhibits platelet aggregation (3283,50844,50942). However, the clinical significance of this effect is unclear.

ANTIDIABETES DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = B

Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.

Details

One clinical study shows that maritime pine bark extract decreases blood sugar in patients with diabetes being treated with antidiabetes agents (15522). Monitor blood glucose levels closely. Dose adjustments might be necessary.

IMMUNOSUPPRESSANTS

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = D

Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.

Details

In vitro and animal research suggests that maritime pine bark extract has immunostimulant activity (2435,2636). This effect has not been reported in humans.

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Adverse Effects view details

Report an Adverse Reaction to Zinopin

Below is general information about the adverse effects of the known ingredients contained in the product Zinopin. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

GINGER

General ...Orally, ginger is generally well tolerated. However, higher doses of 5 grams per day increase the risk of side effects and reduce tolerability. Topically, ginger seems to be well tolerated.
Most Common Adverse Effects:
Orally: Abdominal discomfort, burping, diarrhea, heartburn, and a pepper-like irritant effect in the mouth and throat. However, some of these mild symptoms may be reduced by ingesting encapsulated ginger in place of powdered ginger.
Topically: Dermatitis in sensitive individuals.

Cardiovascular ...Orally, use of ginger resulted in mild arrhythmia in one patient in a clinical trial (16306).

Dermatologic ...Orally, ginger can cause hives (17933), as well as bruising and flushing (20316) or rash (20316).
Topically, ginger can cause dermatitis in sensitive individuals (12635,46902).

Gastrointestinal ...Orally, common side effects of ginger include nausea (17933,22602,89898,101761), belching (10380,103359), dry mouth (103359), dry retching (10380), vomiting (10380), burning sensation (10380), oral numbness (22602), abdominal discomfort (5343,89898,96253), heartburn (5343,7624,12472,16306,20316,51845,89894,89895,89898,89899)(101760,101761,101762,111543), diarrhea (5343,101760), constipation (89898,101760,101761), or a transient burning or "chilly hot" sensation of the tongue and throat (52076). Orally, Number Ten, a specific product composed of rhubarb, ginger, astragalus, red sage, and turmeric, can increase the incidence of loose stools (20346).
Four cases of small bowel obstruction due to ginger bolus have been reported following the ingestion of raw ginger without sufficient mastication (chewing). In each case, the bolus was removed by enterotomy. Ginger is composed of cellulose and therefore is resistant to digestion. It can absorb water, which may cause it to swell and become lodged in narrow areas of the digestive tract (52115).

Genitourinary ...In one clinical trial, some patients reported increased menstrual bleeding while taking a specific ginger extract (Zintoma, Goldaru) 250 mg four times daily orally for 3 days (17931). An "intense" urge to urinate after 30 minutes was reported in two of eight patients given 0.5-1 gram of ginger (7624). However, this effect has not been corroborated elsewhere. Dysuria, flank pain, perineal pain, and urinary stream interruption have been reported in a 43-year-old male who drank ginger tea, containing 2-3 teaspoons of dry ginger, daily over 15 years. The adverse effects persisted for 4 years and were not associated with increases in urinary frequency or urgency. Upon discontinuing ginger, the patient's symptoms began to improve within one week and completely resolved after eight weeks, with no relapses six months later (107902).

Immunologic ...In one case report, a 59-year-old Japanese female with multiple allergic sensitivities developed pruritus and then anaphylactic shock after taking an oral ginger-containing herbal supplement for motion sickness (Keimei Gashinsan, Keimeido). The patient had used this supplement previously for over 20 years with no allergic reaction. The authors theorized the development of a cross-reactivity to ginger after the use of an oral supplement containing zedoary and turmeric, which are also in the Zingiberaceae family (102463).

Neurologic/CNS ...Orally, ginger may cause sedation, drowsiness, or dizziness (16306,17933,51845).

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MARITIME PINE (French Maritime Pine bark extract)

General ...Orally and topically, maritime pine bark extract seems to be well tolerated.
Most Common Adverse Effects:
Orally: Gastrointestinal complaints, dizziness, and vertigo.

Cardiovascular ...A single case of chest pain has been reported for a patient treated with a standardized extract of maritime pine bark (Pycnogenol, Horphag Research). However, the patient had a history of myocardial infarction (50905). Another patient taking the same maritime pine bark extract experienced acute decompensation of heart failure. The patient previously has stable coronary artery disease (50929). It is not clear if either of these adverse effects were directly related to maritime pine bark extract.

Gastrointestinal ...Orally, a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) may cause gastrointestinal problems (15521,15522,17300,50891,50942). Also, mouth ulcer and bad breath have been reported in a single trial (15521).

Neurologic/CNS ...Orally, a standardized extract of maritime pine bark (Pycnogenol, Horphag Research) may cause dizziness and severe vertigo (15521,15522,17300,50904,50933). Also, headache has been reported in a single trial (15521).

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Report an Adverse Reaction to Zinopin

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